Priming-cock.



w. l. ofscH'GER. PRIHING COCK. Mfrucnlon meu mi;` 2a. mi.

Patented Jan, 11'," 1918.

To all whom-it may concern:

which shall be strong and durable, easily thevplug' in one or another predetermined pd ai be had in p 1 to 5 inclusive. 4washer, Fig. 9 is 4sitlon.

-adapted .to engage the end of the plug and,l

STATES 4rnrnisrr onirica.

WALTER :.ponscnenn. or DETROIT, mexican.

' Paname-coen. l

Be it known that I, WALTER I. Onscncrm, a citizen of the United States, and residing at Detroit. in the county 4of Wayne and State of Michigan, have invented a new and Improved Priming-Cock, of which the following is a specification.

This invention relates to priming cocks adapted for the cylinders of internal combustion engines and to other machinery to which small amounts of liquids are to conve 4ed at intervals, and its Objectis to rovine a construction of thisrcharacter tached` andV detached, and which can be. 4manuf'actured at low cost. l

This invent'on consists of a cock having a body formed with 'a polygonal end, a sheet 'metal cup secured tolsaid end, a tapering.

lugrevol'uble in said body and means to hold the plug in proper consists informing notches in the body, mounting a detented washer on the plug,

and mounting a spring on the plug to press the washer against the body in order to hold Itlalso consists ina novel `slip was lace by said end for the purpose of. forming an abutment to hold the `spring in proper position.- u

` t In the. accompanying drawing, is an elevation of this priming cock. Figs. 2 and 3 are elevations of-the body of; the cock at right angles to eachother. Fig. 4 is a plan of this body. Fig. 5 is an elevationfof that portion of the body which is `provided with notches to receive thedetents on a washer. Figs. 6 and 7 are elevations at right angles to each other of the detent washer on twice the scale employed on Figs. 'Fig. 8 is a plan of this a bottom plan, Fig. 10 is an elevation and Fig. 11 is a lan of the cup portion of the priming coc on thesame scale as Figs. 1 to 5 inclusive. Figs. l12 and 13 are views at right angles to each other of the plug on the same scaleas Figs. 6 and 7. Fig. 14 is an end view, thereof taken from the left in Fig. 12. Fig. 15 is an elevation cup position. It further 1 Figure 1 I possible to form th;

fourths 'of an inch in diameter and to secure patented Jan. 1, 191s.

is shown to be much the same as lthose now on the market, but the details thereof are such as to make it possible to produce this cock at 'a' much lower cost of manufacture and to render it more easily attached and detached. The plug is what might be said to be a screw machlne job as the body thereof will be formed practically entirel onascrew machine from a round metal rofl; preferably steel. The lug will also be formed on a screw mac ine from a round rod, `preferably of brass. The cup.shown in Fi 9, 10 and 11 isa stamping, as are also t e two washers. The spring is wound in the usual manner from round wire.

The body 1 of the cock is threaded at its lower end 2,-is formed olygonal at its opposite end 3, is providedpwltha usual longitudinal passage 4, has the tapering hole 5 to 'receive the plug and has that portion around the smal end of the hole 5 fiattened and formed with notches 6. In manufacturing this body the end 3 will be formed round l -into the body as indicated in Figs. 2, 3 andl 5 at the base ofV this end- 3 to permit the chips produced by rI lhe cup 10 shown in Figs. 9.l 10 and 1-1 is pressed outofa disk of sheet metal, preferably mild steel, and formed with the shank 11 that fits the end 3 of the body of the plug. After the cup is in place a special tool 1s employed to press down the upper edges of this end 3 onto the pocket-like dcpreions in the'lower portion of the cup 10, as shown at A13 in Fi 1, in order to secure the cup to the body o thecock. In practice it is thus body from a rod threeacu 10 of several times that diameter to this od at very small cost of material.

The p ug is formed with a tapering portion 14 ada ted tqt the hole 5 in the body, which portlonhas a-transvepse assage 15. The "plug has a head.V 16 provi ed with a body of the plug, into which iole the handle 18 yis fitted. `The shank 19 of the plug has a Hat' side V20 and a circumferential groove 21 near its end. A washer` 22. having a hole 23 into which the shank 19 will slidably lit and a pair of detenta 24, is placed on this the die to' break away.

hole 17 preferably at an obhqlue angleto the I '40' wrenches is provided at such a.

shank with the detents toward the body 1 of the cock in order that they may en age in the notches 6. "A spring 25 is lacel on the shank 19 in engavement with t ewasher 22. The second was er 26 has a transverse '.:slot 27 of such a width that it Wil-l admit tle reduced portion 28 of the shank of the Il) 1 and a circular depression 29to receive tlliiliange B0 at the end of the plug. If' detalent ithe washer may be formed with the circumferential groove 31 to receive the srrifns- The handle 1,8 is secured in position in the plug, after which the plug is slip ed' into the hole 5 of the body 1. The was er 22 is then positioned, after which the spring is iplaced on the shank -19 and compresse su ciently to slide the washer 2 6 into position. The roove 21 around. the lower'e'nd of the shan 19 is s'uiciently wide to permit the grooved outer annular portion of the washer 26 to pass throug'1 it. After the .Washer 26 is concentric wit the shank'the spring will push it outwardy until the head 30 of the shank is in the epression 29 ofthe washer and thereb in position on the shan and prevents it from sli pingV out of place.- -The outward thrust o the spring on rhe washer will pre- 30 vent its displacement. The detenta 24 on the l washer 22 will serve to hold the plut:r in fully open or fully closed position. These detents may be omitted if desired in which case the shank 19 will be left cylindrical and the a5 Washer 22 will be formed with a circular hole.

By forming the upper end of the` bodty and the part 11'of the cup polygonal, pre erably hexagonal, an engaging1 surface for istance from the threa end 2 of the cock that attaching land detaching of the cock from the engine is greatly facilitated. The ordinary cock is now formed with its hex'a on between the plug and the threaded end, ecause the holds the washer 'asomar I body of the cock is usually made of brass which is so brittle that the'position of this hexagonal portion adjacent the threaded end 1s substantially imperative. But when the bodyl of the cock is formed of steel, this consideration no longer exists and thehexagon can be formed at the opposite end of the cock which is the most convenient point.

1. In a priming cock, the combination of a body having one end threaded and the opposite end formed polygonally, a cup having a polygonal shank to engage the polyg onal end of theA body, said body having a transverse taperin hole intermediate its ends and longitudinal passages extending from said tapering hole to its ends, a )lug rovided with a transverse passage and tted into said tapering hole, and means to hold saidY lug in position.

2. n a priming cock, a body having section, a sheet metal cup having a polygonal shank fitting around the polygonal end of the body, said body having a transverse tapering hole inter-mediate its ends and longitudinal passages extending from said tapering hole to its ends, atplug rovided with a transverse passage anditte into said tapering hole, and means to hold said plug in position.

the combination of one end polygonal in cross 3. In a priming cock, the combination of 'I a body having one end threaded andthe oposte end formed polygonlally, a cu "hav ing a polygonal shank of less lengt than the olygonal portion/o the body, said shan .fitting ovcrthe the body and the outer/TenA portion of the bodybein 'expanded to hold the cup in position, said ody being formed with a longitudinal passage andfa transverse hole, and a plug in 'said hole to open and close the passage.

WALTER I. OESCHGER.

of the polygonal gonal portion of 

